import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

class Kode{
    private String code;
    Lock laas = new ReentrantLock();

    public boolean compareCode(String c){
        return code.equals(c);
    }

    public void addCode(String s){
        laas.lock();
        try{
        code = s;
        } finally{
            laas.unlock();
        }
    }

    public String getCode(){
        return code;
    }
}